The ones people ask about
Iodopropynyl Butylcarbamate
Iodopropynyl butylcarbamate, IPBC, is an iodine-containing preservative that is effective against moulds and yeasts.
- On a list as
- Iodopropynyl Butylcarbamate (IPBC)
- What it does
- Preservative (antifungal)
- Where it comes from
- Synthetic
- Vegan?
- Yes
Why it’s in a formula
It is used at very low concentrations, often alongside another preservative, to keep a product safe once it's open.
- The EU caps it at very low concentrations and keeps it out of lip products and most products for children under three.
- It is an occasional cause of contact allergy. On our lists it sits beside diazolidinyl urea in L'Aloès and Le Purifiant, so those two aren't the pieces for reactive skin.
Where you’ll find it at Divina
Read from each piece’s published ingredient list. 2 pieces.
Le Purifiant
Foaming Cleanser — 200ml
$72
Listed as Iodopropynyl Butylcarbamate
Vegan, going by its list
Questions
Is iodopropynyl butylcarbamate safe?
At the tiny concentrations allowed in cosmetics it is considered safe for most people, though a small number are sensitive to it.
How we know: every ingredient list on this site is the manufacturer’s own, read piece by piece and shade by shade, and the pieces above are worked out from those lists each time the site is built. Ingredient names and functions follow the EU’s CosIng database. This page describes cosmetic ingredients; it isn’t medical advice.
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